Method and apparatus for manufacturing slip stopper

a manufacturing method and slip stopper technology, applied in the direction of load securing, transportation items, transportation and packaging, etc., can solve the problems of noise diffusing, increased production process and cost, and inevitable noise from the engine blowing upward from the cover, so as to achieve great slip stopper effect, easy manufacturing, and great slip stop effect
US7021109B2Inactive Publication Date: 2006-04-04SHIN CATERPILLAR MITSUBISHI LTD CORP
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
SHIN CATERPILLAR MITSUBISHI LTD CORP
Publication Date
2006-04-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

An easy manufacturing method of a slip stopper, and apparatus therefor, that has a great slip stopping effect and can be used for a location where a problem occurs if a though hole is opened therein. After a protruding portion is formed on a steel plate, by using a first punching die unit, so as to protrude from the upper surface in a plate thickness direction, a concave portion and drain channels are formed in the protruding portion by shear planes that extend substantially perpendicular to the steel plate upper surface and have been half-blanked so as not to open a through hole in the steel plate by using a second punching die unit.
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Description

[0001] This application claims priority from JP2002-002651, filed Jan. 9, 2002 through PCT / JP02 / 11741 filed Nov. 11, 2002. The disclosures of the identified documents are enclosed herein by reference thereto.BACKGROUND OF THE INVENTION

[0002] 1. Technical Field

[0003] The invention relates to the technical fields of a method and an apparatus for manufacturing a slip stopper employed for a construction machine, such as a hydraulic excavator, or other surfaces that need to be non-slip.

[0004] 2. Background Art

[0005] Generally, a slip stopper with a slip stopping function is occasionally used for floors, passageways, and stairs in building structures, floors and steps of buses, trucks and special vehicles, decks of railroad vehicles and ships, and scaffolding at construction sites. Such a slip stopper, for example, as shown in FIGS. 10(A)–10(C), has been conventionally known. This is a so-called striped steel plate that has a plurality of projections 51 molded in continuous patterned shape, an...

Claims

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